Like Xiaobian, the science popularization articles for everyone are very serious. The types of reinforcing bars are generally classified according to mechanical properties. They are mainly divided into first-grade, second-grade, third-grade and fourth-grade reinforcing bars.

　　钢筋种类中二级钢筋已经逐渐被淘汰，小编在这里就不再介绍了，小编就一级钢筋、三级钢筋、四级钢筋简单介绍一下。

　　Secondary reinforcing bars have been gradually eliminated in the category of reinforcing bars. The first, third and fourth reinforcing bars are briefly introduced here.

　　一级钢筋也就是我们经常说的盘圆。它又称盘条，是建筑工程施工中常用的名称，表示直径是10毫米以下的钢筋，因为10毫米以下的钢筋容易弯曲，在运输前为减小长度，就在厂家把很长的钢筋卷成一圈一圈的圆环状，在建筑工地上把这样的钢筋简称为盘圆。

　　The first grade steel bar is also what we often call the disc. It is also known as wire rod, which is commonly used in construction. It means steel bars with diameters less than 10 millimeters. Because steel bars with diameters less than 10 millimeters are easy to bend, in order to reduce the length before transportation, long steel bars are rolled in a circle by manufacturers. In construction sites, such steel bars are abbreviated as disc circles.

　　钢筋种类中的三级钢筋、四级钢筋主要是说的螺纹钢。螺纹钢是热轧带肋钢筋的俗称。普通热轧钢筋其牌号由HRB和牌号的屈服点小值构成。H、R、B分别为热轧(Hotrolled)、带肋(Ribbed)、钢筋(Bars)三个词的英文首位字母。螺纹钢属于小型型钢钢材，主要用于钢筋混凝土建筑构件的骨架。螺纹钢通常用于钢筋混凝土中，它的条纹的作用就是增大摩擦力，使螺纹钢与混凝土咬合在一起,形成一体,在受外力的作用下不会产生抽动现象，提高混凝土的强度。

　　The three-grade steel bar and the four-grade steel bar are mainly referred to as threaded steel. Thread steel is commonly known as hot-rolled ribbed bar. The grades of ordinary hot-rolled steel bar are composed of HRB and the minimum yield point of the grades. H, R and B are the first letters of Hotrolled, Ribbed and Bars respectively. Threaded steel belongs to small steel, which is mainly used for the skeleton of reinforced concrete building components. Threaded steel is usually used in reinforced concrete. Its stripe function is to increase friction, make the screw steel and concrete bite together, form a whole, under the action of external force will not produce twisting phenomenon, improve the strength of concrete.

　　关于钢筋种类的介绍就到这里了，觉得小编说的不错的，就给小编点个赞吧。另外，如果济南钢筋批发需求的朋友，也可以点击网站进行咨询:http://www.jnslshwx.com

　　The introduction of the types of reinforcing bars is here. I think Xiaobian is a good one. Let's give Xiaobian some praise. In addition, if you have friends who need useful steel, you can also click on the official website for consultation: http://www.jnslshwx.com